Economic Time Series: Modeling and Seasonality is a focused resource on analysis of economic time series as pertains to modeling and seasonality, presenting cutting-edge research that would otherwise be scattered throughout diverse peer-reviewed journals. This compilation of 21 chapters showcases the cross-fertilization between the fields of time series modeling and seasonal adjustment, as is reflected both in the contents of the chapters and in their authorship, with contributors coming from academia and government statistical agencies.

For easier perusal and absorption, the contents have been grouped into seven topical sections:

• Section I deals with periodic modeling of time series, introducing, applying, and comparing various seasonally periodic models
• Section II examines the estimation of time series components when models for series are misspecified in some sense, and the broader implications this has for seasonal adjustment and business cycle estimation
• Section III examines the quantification of error in X-11 seasonal adjustments, with comparisons to error in model-based seasonal adjustments
• Section IV discusses some practical problems that arise in seasonal adjustment: developing asymmetric trend-cycle filters, dealing with both temporal and contemporaneous benchmark constraints, detecting trading-day effects in monthly and quarterly time series, and using diagnostics in conjunction with model-based seasonal adjustment
• Section V explores outlier detection and the modeling of time series containing extreme values, developing new procedures and extending previous work
• Section VI examines some alternative models and inference procedures for analysis of seasonal economic time series
• Section VII deals with aspects of modeling, estimation, and forecasting for nonseasonal economic time series

By presenting new methodological developments as well as pertinent empirical analyses and reviews of established methods, the book provides much that is stimulating and practically useful for the serious researcher and analyst of economic time series.

"This book is an excellent collection of articles about the modeling and seasonal adjustments of economic time series data by the leading experts in this field. ? As someone who often applies time series techniques to economic time series data in research, I found that I could still learn greatly by reading through this book. In particular, some of the discussions about the interactions of time series modeling and seasonal adjustments are very enlightening and useful. ?Overall this volume contains a collection of articles that will prove to be quite useful to researchers who want to do serious applied work in modeling the economic time series data."-Jun Ma, Journal of the American Statistical Association, March 2014 "The list of authors includes some of the leading contributors to the literature, including [editor] Bell. ? All chapters contain both theoretical development and also empirical applications to economic series. ? This volume is an ideal reference for those interested in recent developments in this literature."-Alastair R. Hall, Journal of Times Series Analysis, June 2012